9A Grade Peruvian Loose Wave, 100% pure human hair, easy to wear, different length can be matched freely, like the real growing hair as natural as it.Each bundle is from one donor, 100 gram each bundles. Below 18 inch, 3 pieces can full a head, over 20 inch , it is better use 4 pieces. When use it, you will have good head feeling. We promise that you can rest sure you are purchasing top quality hair.